51... c2c3  52. f7f6  52... c4d2 [%c_effect d2;square;d2;type;Mistake;persistent;true] Both players were down to seconds on the clock, when mistakes are inevitable. 53. g3g2 [%c_effect g2;square;g2;type;Mistake;persistent;true] 53... d6e7 [%c_effect e7;square;e7;type;GreatFind;persistent;true] Now the f3-pawn falls and Black is winning again.